Accession Number : ADA307739

Title :   Birefringent Fiber Devices and Lasers.

Descriptive Note : Rept. for Oct 93-Oct 95,

Corporate Author : ROME LAB ROME NY

Personal Author(s) : Theimer, James P.

PDF Url : ADA307739

Report Date : FEB 1996

Pagination or Media Count : 170

Abstract : This report describes the results of computer simulations of optical devices which contain birefringent elements. The physics of pulse propagation in birefringent fiber is summarized first. The behavior of pulses in birefringent fiber amplifiers is examined. These pulses will break up under high amplification. This behavior is shown in the simulations. Simulations of the Nonlinear Optical Loop Mirror are shown. The differences between the behavior of these devices with pulsed and nonpulsed inputs are discussed, and approximate analytical models are derived. The effect of changing polarization controller settings is examined extensively. A fiber ring laser mode locked with a Nonlinear Optical Loop Mirror is studied. It is shown that the cavity length can be increased greatly if the dispersion of the fiber in the amplifier and in the loop mirror is balanced so that the pulse is nearly a soliton in both elements.

Descriptors :   *FIBER OPTICS, *RING LASERS, *BIREFRINGENCE, *LIGHT AMPLIFIERS, MATHEMATICAL MODELS, COMPUTERIZED SIMULATION, LASER CAVITIES, DISPERSING, NONLINEAR OPTICS, LIGHT PULSES, LIGHT TRANSMISSION, AMPLIFICATION, LOOPS, SOLITONS.

Subject Categories : Electrooptical and Optoelectronic Devices
      Lasers and Masers
      Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE